Welcome to the CTF Game

System Security Notice

To All Authorized Users:

Recent monitoring has detected multiple unauthorized login attempts. Initial analysis indicates potential security risks.

Account Naming Rules:

• Username format: Lastname + Surname + 3 digits
• Example: ZhangAlice123

Credential Requirements:

• New accounts use default credentials
• Initial login requires password reset
• All passwords are securely hashed using cryptohash

Security Alerts:

• Active default credentials detected
• Unusual database queries found
• Unauthorized privileged access attempts

Required Actions:

• Verify account security status
• Maintain operation logs
• Report suspicious activity

Information Security Office
April 8, 2025